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#!/usr/bin/env bash
set -eu

echo "$(id)"
mkdir ${HOME}/qemu || ls -la ${HOME}/qemu/

cd ${HOME}/qemu

IMAGE_WIC="${IMAGE_FILE%.*}"
if [ ! -f "${IMAGE_WIC}" ]; then
  cp -v /qemu/* .
fi

wait_for_sshd () {
  while true;
  do
    (ssh -o ConnectTimeout=5 \
         -o HostKeyAlgorithms=+ssh-rsa \
         -o StrictHostKeyChecking=no \
         -p 2223 root@localhost /bin/true) && break || \
    echo "<<< Please wait ... >>>"
    sleep 5
  done
}

run_qemu () {
  set +e
  QEMU_LOG="${HOME}/qemu-$(date +%Y%m%d.%H%M.%s).log"
  echo "<<< Run RDK-B with QEMU >>>"
  timeout -v 900 bash <<-EOF
    set -x
    qemu-system-aarch64 \
      -machine virt \
      -cpu cortex-a72 \
      -m 2G \
      -smp 4 \
      -nographic \
      -kernel "${KERNEL_FILE}" \
      -drive file="${IMAGE_WIC},if=none,id=hd0,cache=writeback,format=raw" \
      -device virtio-blk-device,drive=hd0 \
      -append "rw earlyprintk loglevel=8 console=ttyAMA0,115200 root=/dev/vda2 rootdelay=1" \
      -device "virtio-net-device,netdev=eth0" \
      -netdev "user,id=eth0,${HOST_FWD}" \
      >> "${QEMU_LOG}" 2>&1 &
    set +x
    echo "<<< Waiting for RDK-B to fully initialise >>>"
    sleep 5
    ( tail -f -n0 "${QEMU_LOG}" & ) | while IFS= read -r line; do
      echo "\${line}"
      if \$(echo "\${line}" | grep -q "Apache License") ; then
        echo "Apache service has been started!"
        break
      fi
    done
EOF
}

echo "Starting QEMU ..."

set -e
run_qemu
wait_for_sshd
ssh -p 2223 -o StrictHostKeyChecking=no root@localhost /sbin/reboot
sleep 10
wait_for_sshd

echo "<<< RDK-B fully initialised >>>"